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Shock-Absorbent Ball-Screw MechanismActuator containing two ball screws in series employs Belleville springs to reduce impact loads, thereby increasing life expectancy. New application of springs increases reliability of equipment in which ball screws commonly used. Set of three springs within lower screw of ball-screw mechanism absorbs impacts that result when parts reach their upper and lower limits of movement. Mechanism designed with Belleville springs as shock-absorbing elements because springs have good energy-to-volume ratio and easily stacked to attain any stiffness and travel.
Document ID
19860000463
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Hirr, Otto A., Jr.
Meneely, R. W.
Date Acquired
August 12, 2013
Publication Date
September 1, 1986
Publication Information
Publication: NASA Tech Briefs
Volume: 10
Issue: 5
ISSN: 0145-319X
Subject Category
Machinery
Report/Patent Number
ARC-11366
Accession Number
86B10463
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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